baber/WOPTO huggingface dataset:
Patent GB-1345001-A (GB)
Title: Film-forming copolyamides and the production and use thereof
IPC: C08G69/36
Filed: 1970-12-23
Abstract: 1345001 Copolyamides WOLFF WALSRODE AG 23 Dec 1970 [30 Dec 1969] 61028/70 Heading C3R A film-forming copolyamide comprises 80 to 90 wt. per cent units -NH-(CH 2 ) 11 -CO (I) and correspondingly 10 to 20 wt. per cent units -CO-Y-CO-NH-R-NH- (II) where Y is phenylene and/or -(CH 2 ) n -, n is at least 4, and R is derived from a mixture of the 2,2,4- and 2,4,4-isomers of trimethylhexamethylene diamine or from isopherone diamine. It may be prepared by reacting at 240 to 340‹ C. (a) aminododecanoic acid, laurolactam, or nylon 12 with (b) a phthalic (preferably terephthalic) acid and/ or HOOC-(CH 2 ) n -COOH and (c) the above diamine(s) or the salt(s) of (b) and (c), optionally in the presence of a viscosity stabilizer, e.g. a monocarboxylic acid or monoamide, and a reaction accelerator, e.g. phosphoric acid or an ester thereof. Polymers produced in the examples have relative viscosities (1 g/100 ml. 96% H 2 SO 4  at 25‹ C.) from 1À32 to 1À51 and melting ranges between 137 and 162‹ C. They may be formed into flat or tubular mono- or multi-layer shrinkable or non-shrinkable films of low water absorption and good solvent-resistance and ink and dye affinity. They may be used for sausage casings. Reference is made to Specifications 1,305,786; 1,216,443; 1,172,428 and 1,172,427.
Patent GB-1234968-A (GB)
Title: Corrective agent for diazotype copies
IPC: G03C1/52
Filed: 1968-12-23
Abstract: 1,234,968. A corrective agent for diazotype copies. KALLE A.G. Dec.23, 1968 [Dec.27, 1967], No.61048/68. Heading G2C. A corrective agent for diazotype copies comprises a solution of a stannous salt, a strong inorganic acid in sufficient quantity to dissolve the stannous salt without hydrolysis, water, at least one halogenated hydrocarbon and an organic solvent at least partially mixible with water. In the examples, the halogenated hydrocarbon is chloroform, chlorobenzene, trichlorethylene, methylene chloride or carbon tetrachloride; the organic solvent is a mixture of isopropanol, ethylene glycol monomethyl ether, methyl ethyl ketone, triethylene glycol and glycerol and the acid is hydrochloric acid.
Patent GB-1338384-A (GB)
Title: Dielectric waveguides
IPC: H01P3/16
Filed: 1969-12-17
Abstract: 1338384 All-dielectric waveguides POST OFFICE 16 Dec 1970 [17 Dec 1969] 61589/69 Heading H1W A dielectric waveguide for propagation of the HE 11  electromagnetic mode comprises a core 1 of polymeric material of a loss angle not greater than 50 Á radians and of a diameter between 0À5 # 0  and 0À85 # 0 (# 0  is free-space wavelength), a support 2 surrounding the core and consisting of foamed polymeric material having a dielectric constant substantially equal to unity and having an outer diameter between 1À6 # 0  and 5À0 # 0 , and a jacket 3, 4 providing protection against mechanical stress and moisture and also providing electrical screening. The core and the support may both be of polypropylene. The core may be a solid rod or may consist of foamed or stranded material. The jacket may consist of a layer of carbon 3 and an outer layer of a suitable polymer. The guide is formed by a precision extrusion process. The advantageous properties of the construction are described in detail in the Specification.
Patent GB-1213839-A (GB)
Title: Process for obtaining tetrachloroethanes
Inventor: CORREIA YVES
IPC: C07C17/04
Filed: 1968-12-30
Abstract: 1,213,839. Chlorination process. PRODUITS CHIMIQUES PECHINEY-SAINTGOBAIN. 30 Dec., 1968 [29 Dec., 1967], No. 61702/68. Heading C2C. Tetrachloroethanes are produced by reacting a mixture comprising 1,2-dichloroethylene and 1,1-dichloroethylene in the liquid phase and containing not more than 0À001% by weight of conventional stabilizers, with molecular chlorine at 50‹ to 90‹ C. in the absence of both light and catalysts, the molar ratio of chlorine to dichloroethylenes being from 0À6 to 1À10 : 1. The reaction mixture may also include dichloroethane. Specified by-products include pentachloroethane and dichloroethane.
Patent GB-1214357-A (GB)
Title: 9,10-ethano anthracene derivatives
Inventor: CHRISTY MARCIA ELIZABETH
IPC: C07C62/38
Filed: 1968-03-18
Abstract: 1,214,357. 9,10-Ethanoanthracene derivatives. MERCK & CO. Inc. 18 March, 1968 [21 March, 19671, No. 62407/69. Divided out of 1,214,356. Heading C2C. The invention comprises compounds of the Formula I, wherein R represents an alkanoyl group or a ketalized derivative thereof, each of R<SP>3</SP> and R<SP>4</SP> represents a hydrogen or halogen atom or an alkyl, alkoxy, or trifluoromethyl group and X represents an amino, alkoxycarbonylamino, cyano, carboxy or alkoxycarbonyl group, except that X is not amino when R is ketalized alkanoyl and their preparation by reacting a 9-alkanoylanthracene of the Formula II where R represents an alkanoyl group with acrylic acid, an alkyl acrylate or acrylonitrile to form a 9-alkanoyl-9,10-ethano- 11-(carboxy, alkoxycarbonyl, or cyano)dihydroanthracene of the Formula III wherein X<SP>1</SP> represents a carboxy, alkoxycarbonyl or cyano group and optionally ketalizing the product or by reacting a compound of the Formula IV with hydrozoic acid to convert the carboxylic group to a primary amino group or by reacting an ester of the Formula V with hydrazine, treating the resulting hydrazide with nitrous acid to form a urethane of the Formula VI and hydrolysing the latter to produce a compound of the Formula VI.
Patent GB-1299608-A (GB)
Title: Pyrosilicate phosphor and lamp
Inventor: BARRY THOMAS LEO
IPC: C09K11/77
Filed: 1969-12-23
Abstract: 1299608 Luminescent materials GTE SYLVANIA Inc 23 Dec 1969 [23 Dec 1968] 62662/69 Heading C4S A phosphor comprises Eu activated alkaline earth pyrosilicate containing Mg. The phosphors have a general formula where M is Ca, Sr and/or Ba; 2À25 # a # 1À75, 1À25 # b # 0À75 and 0À40 # c # 0À0004. A single phase phosphor is prepared by blending alkaline earth and Mg carbonates, SiO 2  and Eu 2 O 3  with NH 4  Cl flux using glass balls and firing in 80% N 2 , 20% H 2  saturated with water vapour. The phosphors are used in Hg discharge lamps.
Patent GB-752963-A (GB)
Abstract: 752,963. Sparking plugs. BOSCH GES., R. June 4, 1954 [June 6, 1953], No. 16546/54. Class 7(4) [Also in Group XXII] A sparking plug has a centre electrode comprising a sparking section 1, 2 secured by forging to a pin 5 which bears against the sloping end 13 of a terminal 12 and is elastically bent thereby so as to ensure good electrical contact. The electrode is assembled in an insulator 11.
Patent GB-776944-A (GB)
Abstract: 776,944. Igniting burners. THORP & CO., Ltd.. T. Oct. 10, 1955 [Oct. 18, 19541, No. 29882/54. Class 75(3) [Also in Group XXIX]  A safety cut-off device for gas consuming appliances comprises a hollow plug a having ports m, k in its wall to pass gas to the main and pilot burners respectively, a handle c for turning the plug and also operating gas igniting means for the pilot burner, and a spring-loaded main valve j  seating on the end of the plug but held open by the expansion of a closed chamber g<SP>1</SP> so long as the pilot flame is alight, a peripheral recess b being provided in the plug to by-pass the valve j and so supply gas to the pilot burner when the plug is turned against spring pressure to the position in which the gas igniting means is operated. When the handle c is released, it moves to the normal service position Fig. 6 in which the ports m, k are open and the recess b is cut off from a passage e leading to the pilot-burner f. The body of the device is formed with a gas supply passage d, a passage n leading to the main burner of the appliance and a further passage k<SP>1</SP> to the pilot burner f. The closed chamber g<SP>1</SP> is bounded by a rigid cover g heated by the pilot flame and a diaphragm h acting on the valve j through a spindle i. The gas igniting means comprises a coil arranged in a tube r, Fig. 15, connected to terminals p, q. The circuit is completed when blade spring contacts v, w are pressed into contact with one another by a spindle w operated by a spring-loaded plunger t itself operated by an arm s on the handle c. According to the Provisional Specification, the valve j may be held open by a magnet energized by a thermocouple heated by the pilot flame. The gas at the pilot burner may be ignited by a flint operated by a hand or foot operated lever. A primary pilot burner which is supplied from the inlet side of the valve j and a secondary burner supplied through the hollow plug may be provided.
Patent GB-2000230-A (GB)
Title: Improvements relating to the control of fuel metering in constant vacuum carburettors for internal combustion engines
IPC: F02M7/17
Filed: 1978-06-01
Abstract: Fuel introduced into an inlet of an internal combustion engine through a constant vacuum, variable choke carburettor is metered in dependence upon the direct vacuum subsisting in the inlet downstream from the throttle valve. The fuel is metered so that the effective cross-sectional area of the metering jet 9 is reduced by moving the jet by a vacuum actuator 21 as the degree of direct vacuum increases, to reduce fuel consumption and environmental pollution during idleing and overrun of the engine. Examples of other constant vacuum, variable choke carburettors including vacuum actuators to exercise this control and conversion assemblies to convert existing carburettors are also disclosed. <IMAGE>
Patent GB-2001282-A (GB)
Title: Fiber reinforced multi-ply stampable thermoplastic sheet
IPC: B29C63/00
Filed: 1978-07-18
Abstract: Reinforced thermoplastic polymer composite sheets, formable into smooth, shaped objects in a stamping process. The composite sheet is produced by laminating together (1) a first layer of thermoplastic resin optionally containing short glass fibers and a mineral filler such as kaolin, (2) a backing reinforcing layer comprising a long glass mat impregnated by thermoplastic resin and (3) optionally a third layer similar to said first layer. The long glass mat is positioned within the reinforcing layer during impregnation, whereby the mat becomes encased in a resin matrix.
Patent GB-2001993-A (GB)
Title: Immobilised enzyme preparation
IPC: C12N11/06
Filed: 1978-07-20
Abstract: An enzyme is attached to a support by means of hydrophobic groups on the surface thereof, the hydrophobic groups containing substituted or unsubstituted aliphatic hydrocarbon chains of at least 6 carbon atoms and/or chains of optionally substituted phenyl groups.
Patent GB-2003753-A (GB)
Title: Device for powder coating for three-piece can
IPC: B05C7/04
Filed: 1978-09-08
Abstract: An apparatus for coating the inside of tubular members, more specifically can bodies C, which are open at opposite ends. The apparatus includes a supply tube 12 and a return tube 14 which are spaced apart to have received therebetween the tubular member to be coated. In each of the supply tube and the return tube there is positioned a corona electrode, 24, 30, the corona electrodes being in alignment wherein powder supplied to both initially charged as it passes through the supply tube and is further charged within the tubular member by an electrical field which exists between the two corona electrodes and the tubular member. Powder is supplied to the supply tube through a small diameter passage 16 as compared to the diameter of the supply tube and there is provided a diverter 18 which effects radially outward flow of incoming powder so that the powder is concentrated substantially adjacent the inner surface of the supply tube so that the powder delivered to the tubular member flows substantially entirely along the inner surface of the tubular provision of a thin coating on the tubular member which is uniform in thickness at opposite ends thereof. <IMAGE>
Patent GB-2005565-A (GB)
Title: Powder-type flame-spraying nozzles
IPC: B05B7/20
Filed: 1978-09-27
Abstract: A nozzle for powder flame- spraying apparatus comprises a nozzle body 2 made of a material such as beryllium-copper, a central powder- carrier gas channel 3 and either an annular fuel-gas supply channel or a plurality of fuel-gas supply channels 4 concentrically surrounding the powder-carrier gas channel 3, the channels being arranged so that the powder and gas flows intersect in front of the outlet-side face 1, the outlet-side face being curved in a convex manner and/or comprising one or more frusto-conical surfaces. Caking of the powder on the outlet- side face is thus avoided. <IMAGE>
Patent GB-2033536-A (GB)
Title: Piston-and-cylinder device
IPC: F16J10/04
Filed: 1978-11-04
Abstract: A piston-and-cylinder device 1 comprises a cylinder 2 which includes a main cylindrical portion 3 having an end wall 4, 5 at each end thereof and having a cylindrical liner 6 disposed therein. The material of the liner has greater wear-resistance and a different co-efficient of expansion from the material of the main portion 3. Metallic spring means 7 is so disposed and compressed between the end wall 4 and the adjacent end portion of the liner 6 as to maintain the liner in positive engagement at its other end portion with the other end wall 5. <IMAGE>
Patent GB-2009090-A (GB)
Title: Filling and Sealing Containers
IPC: B65D/
Filed: 1978-11-24
Abstract: A container has a closure member 12 initially hingedly connected thereto for movement between an open position, in which the container can be filled through a filling opening in the container, and a closed position, in which said opening is closed by the closure member. The container is sealed after filling by sealing the closure member in its closed position to the container. The closure member closes the bottom of a tubular container which is already closed at its top with a sealed-on closure member 11 having a readily openable portion. The hinge is constituted by one or more extension strips 14-16 of lining laminate lining the inner surface of the closure member 12. <IMAGE>
Patent GB-2013847-A (GB)
Title: A method and apparatus for the utilization of waste heat from an oven furnace
IPC: A21B1/24
Filed: 1979-01-08
Abstract: In a heat exchanger 1 for use with a tunnel oven used for baking, waste gases from a gas flue heating system and vapours produced in the baking process pass over heat exchange tubes 23, 23a which contain fluid in communication with a hot water/steam tank 12 to which heat is thus transferred. The waste gases and vapour then pass over preheating heat exchange tubes 20, 21, 22 before being exhausted. The vapours condense out on the tubes 20, 21, 22 and are drained off. The tubes 20, 21, 22 are connected in an upstream directed to, respectively, a cold water tank 9, warm water tank 10, warmer water tank 11 and the hot water tank 12, adjacent tanks being connected together by the tubes and through gaps 18 between upper and lower plates 14, 15 forming the tanks. Fresh, cold process water is fed to the cold tank 9 and is passed through the tanks to be gradually heated. <IMAGE>
Patent GB-2012594-A (GB)
Title: Membrane diffusion apparatus
IPC: A61M1/22
Filed: 1979-01-19
Abstract: Apparatus for oxygenating blood including a diffusion device 12 incorporating a folded semi-permeable membrane and a heat exchange device 54 connected together for flow of blood through both devices, a rigid reservoir 78 being provided for receiving blood from the heat exchange device, the blood circuit defined by the diffusion device, heat exhange device and reservoir being of substantially constant width perpendicular to the general flow of blood through the apparatus. A stiff thermoplastic coated backing material has lateral tabs folded back against the remainder of the backing and heat sealed to provide a spacing and gasket seal at opposed edges of the stack. <IMAGE>
Patent GB-2044086-A (GB)
Title: Improvements in or relating to seating arrangements
IPC: B62B7/08
Filed: 1979-02-10
Abstract: The invention provides a seating arrangement, e.g. for use in a folding pushchair, comprising a frame 29, 22a, 22b supporting a seat 31 and backrest 32 hinged to the seat at 34, the seat being adjustable in the front to rear direction relative to frame member 29 and the inclination of the backrest being dependent upon the front to rear location of the seat. The backrest 32 is adjustable relative to frame members 22a, 22b by sleeves 49 slidable on members 22a, 22b and having pivot pins 50 with ball heads 51 rotatably captive in the backrest. The arrangement may further include a leg rest 33 adjustable with the seat and backrest. <IMAGE>
Patent GB-2018322-A (GB)
Title: Braking system for controlling the uncoiling of wire in tubeless stranding machines
IPC: B21F23/00
Filed: 1979-02-22
Abstract: A braking system for controlling the uncoiling of elongate material 6 from a reel 1 in a tubeless stranding machine, the braking system being located within the rotating system of the machine on the reel carrier frame or cradle 7 and comprising the combination of a brake means 2, 18, 9 for braking the reel 1 with a low but constant brake force dependent upon the tension in the material 6 and a second centrifugally operated brake means 11, 12, 21, 22, 23, 24 for applying a higher but variable brake force on the material 6, so that during start-up and stopping of the stranding machine the braking system generates a low brake force serving only to keep the material 6 taut and prevent the reel 1 overrunning and the braking force on the material 6 increases as the rotational speed of the machine increases so that the desired flight curve of the material 6 along the machine is maintained. <IMAGE>
Patent GB-2019676-A (GB)
Title: An electric motor control circuit
IPC: H02P3/12
Filed: 1979-03-02
Abstract: The control circuit includes a selectively conductive shunt element (T2) in the form of a transistor connected in parallel with the motor to conduct or not by the motor control signal, applied to power transistor (T1), which holds the transistor (T2) in a non-conducting state when the motor is energised so that during normal running of the motor all the drive current passes through the motor (11), none passing through the transistor (T2) which only carries the current generated by the back e.m.f. when the motor is de-energised and the shunt transistor (T2) is biased to a conducting state, thereby to provide a braking effect on the motor. A third transistor (T3) grounds the base of transistor (T2) during the time that the motor is energized. The motor is controlled to run incrementally by the control signal. <IMAGE>
Patent GB-2045845-A (GB)
Title: Condensate collecting means
IPC: E06B7/14
Filed: 1979-03-09
Abstract: Condensate collecting means comprises a length or strip of suitable, e.g. plastics, material incorporating a lengthwise channel (13) at least partially filled with a removable condensate absorbing material e.g. a strip of foamed plastics or rubber (14). Preferably the device has a self-adhesive surface (10b) whereby it may be readily adhered in position of use, e.g. to the bottom of a window pane. <IMAGE>
Patent GB-2021329-A (GB)
Title: A key member for the closure of slots in armature laminations in electrical machines
IPC: H02K3/487
Filed: 1979-05-04
Abstract: A key member 2 for closing slots 5 in armature laminations 1 of electrical machines comprises a flat slotted strip 7 with inclined lateral strips 8 along opposite edges for engaging a keyway 6 in the slots of the laminations, at least one of the lateral strips 8 having an outward convex curvature 9 along at least part of its length and a transverse slot 12 extending from a longitudinal slot 10 in the strip towards the convex lateral strips 8. <IMAGE>
Patent GB-2027720-A (GB)
Title: Process for Producing a Propylene Copolymer and a Multilayer Polypropylene Film
IPC: C08F210/06
Filed: 1979-06-13
Abstract: A process for producing a propylene copolymer comprises copolymerizing propylene, a C4-C18  alpha -olefin and optionally ethylene in the presence of a catalyst system comprising (i) titanium trichloride obtained by a method comprising reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with a complexing agent and a halogen compound, and (ii) an organoaluminum compound. A multilayer polypropylene film comprises a crystalline polypropylene film layer, and a propylene copolymer film layer, said propylene copolymer being a propylene copolymer containing about 10 to 30% by weight of C4-C18  alpha -olefin and about 0 to 5% by weight of ethylene and having a cold xylene-soluble polymer content of 15% by weight or less.
Patent GB-2029678-A (GB)
Title: Microwave sealing arrangement
IPC: H05B6/76
Filed: 1979-06-22
Abstract: A sealing arrangement 10 for a microwave heating cavity 13 comprises first and second strips 14, 15 having upstanding longitudinal webs 18, 19, 20, 21 and 23, 24, 25 respectively, a first resilient elongate sealing element 34 located in a channel 27 between one pair of webs 18, 19 of strip 14 and a second resilient elongate sealing element 35 provided with a conductive cover 38 located in a channel e.g. 28 between another pair of webs 19, 20 of strip 14 so that when the strips are mounted on frames 11, 12, of the housing of the cavity, the webs 23, 24, 25 engage and deform the sealing elements 34, 35 and form a gas tight microwave seal. Two conductive covered sealing elements 35 are separated by a distance L equal to half a wavelength which provides an effective electrical short circuit additional to the contact seal. A resilient closing load e.g. a water filled hose or a ferrite loaded rubber or plastics seal may be provided in an additional channel between adjacent webs of strip 19. Thermal insulation may protect the seal from the environment of the cavity. The sealing elements are retained in the channels by their resilience and may be readily replaced. <IMAGE>
Patent GB-2029596-A (GB)
Title: Recording from TV on to cine film
IPC: G03B15/00
Filed: 1979-08-10
Abstract: An apparatus for synchronously transferring TV pictures on to cine film so as to avoid the appearance of a bar across each frame comprises a TV screen (3, Figure 1) and a cine camera (1) having a motor drive unit (11) driving a rotary shutter blade (12, Figure 2) at the rate of one rotation per three TV field scans with the aid of a control unit (2) and also having a photoelectric trigger (14) generating a shutter opening signal, the control unit synchronising the shutter opening signal (manually or automatically) with the TV video signal such that the shutter opens at the beginning of a field scan. The shutter remains open for two-thirds of the time of its rotation and so two field scans are recorded on each cine film frame. The apparatus operates at any field scan frequency.
Patent GB-2035430-A (GB)
Title: Method of manufacturing tubes
IPC: F16L9/147
Filed: 1979-08-13
Abstract: In manufacturing tubes a portion of steel 1, 2 or cardboard 3, 4 or other material is rolled to form a tube with a simultaneous injection 6, 7 of an expandable synthetic material such as polyurethane polyethylene or PVC. Alternatively the expandable material is injected into the interior of a preformed tube 8. The thus reinforced tube can be provided with an external coating 13, 14 of plastics material and may be cut the lengths 16 and provided with an external or internal threading 17. <IMAGE>
Patent GB-2078562-A (GB)
Title: Chucks
IPC: B23D59/02
Filed: 1979-10-19
Abstract: A chuck receives a tool - e.g. glass drill 7, with a push and twist action to locate projections 10 in recesses 15 and effect coupling and drive transmission. The tool is formed with a spigot for aligning the tool with a chuck drive shaft 3 which spigot bears against rubber seals 12 to seal a fluid coupling between the tool and chuck and to provide a bias for locking the coupling. <IMAGE>